For years I have hoed off the leaves as they appear and especially the flowers if I missed any, dug up the bulbs and dried them to kill them, and am now trying a different approach.
|Emerging leaves are easily pulled off now.|
The leaves break off underground if they are grasped by hand and pulled out.
If this works to kill them off, I'll update this entry later in the year.
With my talk The evolution of a formal garden to a nature reserve at http://www.peterlovetttalks.co.uk/page19.html it is important to me to get rid of Spanish bluebells completely.